Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 1281:
A man walks 8km north and then 5km in a direction 60<sup>o</sup> east of north. Find the distance from his starting point
Options:
A) 11.36km
B) 12.36km
C) 13.00km
D) 14.36km
Show Answer
The correct answer is A .
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Question 1282: Which of the following is NOT a component of an a.c. generator?
Options:
A) Armature
B) Carbon brushes
C) Magnet
D) Slip ring
E) Split rings
Show Answer
The correct answer is E .
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Question 1283:

The resultant capacitance in the figure above is
Options:
A) 15.0µF
B) 9.8µF
C) 1.3µF
D) 0.8µF
Show Answer
The correct answer is D .
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Question 1284:

In the diagram shown, which of the simple pendulum will resonate with P when set into oscillation?
Options:
A) U
B) T
C) R and T
D) Q and R
Show Answer
The correct answer is B .
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Question 1285:
Which of the following thermometers measures temperature from the thermal radiation emitted by objects?
Options:
A) Pyrometer thermometer
B) Platinum resistance thermometer
C) Thermocouple thermometer
D) Constant pressure gas thermometer
Show Answer
The correct answer is A .
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Question 1286: A metal rod 800mm long is heated from 10oC to 95oC. If it expands by 1.36mm, the linear expansivity of the metal is
Options:
A) 2.0 x 102K-1
B) 2.0 x 102K-1
C) 5.0 x 10-3K-1
D) 2.0 x 10-5K-1
Show Answer
The correct answer is D .
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Question 1287:
Which of the following may be used to determine the relative humidity in a physics laboratory I. Manometer
II. Wet-and-Dry Bulb Hygrometer
III. Hair Hygrometer
IV. A Hydrometer
Options:
A) I Only
B) II and III Only
C) II Only
D) III Only
E) II,IIIand IV Only
Show Answer
The correct answer is B .
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Question 1288:
Arrange the following in the order of their increasing frequency.I. Visible light
II. Gamma rays
III. Radio waves
IV. Infra-red radiation
V. Ultra-violet radiation
Options:
A) I, II, III, IV, V
B) II, III, IV, V, I
C) III, IV, V, I, II
D) IV, III, I. V, II
E) III, IV, I,V, II
Show Answer
The correct answer is E .
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Question 1289: Which of the following are true about the infra-red radiation? i. it is invisible ii. it is called heat ray iii. its frequency is higher than that of blue light iv. it travels as a transverse wave
Options:
A) i, ii, iii and iv
B) i, ii, iv only
C) i, iii, iv only
D) ii, iii, iv only
Show Answer
The correct answer is B .
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Question 1290: A body of mass 40g loses 80J of heat energy. If the specific heat capacity of the body is 400 Jkg-1, calculate the change in temperature of the body.
Options:
A) 0.2K
B) 0.4K
C) 2.0K
D) 5.0K
E) 10.0K
Show Answer
The correct answer is D .